J/ApJS/202/15ivo://CDS.VizieR/J/ApJS/202/15doi:10.26093/cds/vizier.22020015CDSSansonetti C.J.Nave G.Reader J.Kerber F.2012-12-12T21:11:01Z2012-11-20T15:15:32ZCDS support team

CDS, Observatoire de Strasbourg, 11 rue de l'Universite, F-67000 Strasbourg, France

cds-question@unistra.fratomic-physicsspectroscopyultraviolet-astronomyWe report new observations of the spectrum of singly ionized chromium (CrII) in the region 1142-3954{AA}. The spectra were recorded with the National Institute of Standards and Technology 10.7m normal-incidence vacuum spectrograph and FT700 vacuum ultraviolet Fourier transform spectrometer. More than 3600 lines are classified as transitions among 283 even and 368 odd levels. The new spectral data are used to re-optimize the energy levels, reducing their uncertainties by a typical factor of 20.2012ApJS..202...15Shttps://cdsarc.cds.unistra.fr/viz-bin/cat/J/ApJS/202/15CatalogResearchIsServedByTAP VizieR generic servicerelated-toJ/ApJS/196/24 : Electron-impact excitation of CrII (Wasson+, 2011)J/A+A/511/A68 : Transitions of CrII (Gurell+, 2010)J/A+A/524/A35 : Effective collision strengths of CrII (Wasson+, 2010)J/ApJ/700/720 : The 236.6-5400.0nm spectrum of CrI (Wallace+, 2009)J/ApJ/667/1267 : CrI transition probabilities (Sobeck+, 2007)https://cds.unistra.fr/vizier-org/licences_vizier.htmlhttps://vizier.cds.unistra.fr/viz-bin/VizieR-2?-source=J/ApJS/202/15https://vizier.iucaa.in/viz-bin/VizieR-2?-source=J/ApJS/202/15http://vizieridia.saao.ac.za/viz-bin/VizieR-2?-source=J/ApJS/202/15https://vizier.cds.unistra.fr/viz-bin/votable?-source=J/ApJS/202/15https://vizier.iucaa.in/viz-bin/votable?-source=J/ApJS/202/15http://vizieridia.saao.ac.za/viz-bin/votable?-source=J/ApJS/202/15GETtext/xml+votablehttps://tapvizier.cds.unistra.fr/TAPVizieR/tapUVdefaultJ/ApJS/202/15/table1Optimized energy levels of Cr IIConfConfigurationphys.atmol.configuration;instr.setupcharrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintTermTermphys.atmol.qnchar2J[1/17] J valuephys.atmol.qnintEEnergy level valuecm**-1phys.energy;phys.atmol.leveldoublee_EUncertainty in Energycm**-1stat.errorfloatNlNumber of lines observed for levelmeta.numberintJ/ApJS/202/15/table2Classified lines of Cr IIrecnoRecord number assigned by the VizieR team. Should Not be used for identification.meta.recordintIntIntensityspect.line.intensityintCommCodes describing line character (1)meta.notecharlambdaWavelength {lambda} in Angstroms (2)0.1nmem.wl;phys.atmol.transitiondoublee_lambdaUncertainty in lambda0.1nmstat.errordoublesigmaWavenumber {sigma}cm**-1em.wavenumberdoublee_sigmaUncertainty in sigmacm**-1stat.errorfloatConf.0Even level configurationphys.atmol.configurationcharTerm.0Even level termphys.atmol.qnchar2J0[1/17] Even level J valuephys.atmol.qnintConf.1Odd level configurationphys.atmol.configurationcharTerm.1Odd level termphys.atmol.qnchar2J1[1/17] Odd J valuephys.atmol.qnintlam.cCalculated wavelength (2)0.1nmem.wl;phys.atmol.transitiondoublee_lam.cUncertainty in CWave0.1nmstat.errordouble